<template>
   <li
    @mouseenter="isEnter = true"
    @mouseleave="isEnter = false"
    :style="{background : isEnter ? '#ccc' : ''}"
   >
      <label>
        <input type="checkbox" @change="updateDone(id)"/>
        <span>{{content}}</span>
      </label>
      <button 
        class="btn btn-danger" 
        :style="{display:isEnter?'block':'none'}"
        @click="deleteOne(id)"
      >删除</button>
    </li>
</template>

<script>
export default {
  name: "Item",
 data() {
  return {
    isEnter:false
  }
 },
   props:["id","done","content","updateDone","deleteOne"]
};
</script>

<style>
/*item*/
li {
  list-style: none;
  height: 36px;
  line-height: 36px;
  padding: 0 5px;
  border-bottom: 1px solid #ddd;
}

li label {
  float: left;
  cursor: pointer;
}

li label li input {
  vertical-align: middle;
  margin-right: 6px;
  position: relative;
  top: -1px;
}

li button {
  float: right;
  display: none;
  margin-top: 3px;
}

li:before {
  content: initial;
}

li:last-child {
  border-bottom: none;
}

</style>
